JP4409265B2 - Retractor mounting structure for rear seat belt - Google Patents

Retractor mounting structure for rear seat belt Download PDF

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Publication number
JP4409265B2
JP4409265B2 JP2003400006A JP2003400006A JP4409265B2 JP 4409265 B2 JP4409265 B2 JP 4409265B2 JP 2003400006 A JP2003400006 A JP 2003400006A JP 2003400006 A JP2003400006 A JP 2003400006A JP 4409265 B2 JP4409265 B2 JP 4409265B2
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retractor
bracket
mounting
seat belt
rear seat
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JP2005161887A (en
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俊之 原
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Subaru Corp
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Fuji Jukogyo KK
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Description

本発明は、リヤシートベルトを巻取るリトラクタをブラケットを介して車体に固定するリヤシートベルト用リトラクタの取付構造に関する。   The present invention relates to a mounting structure for a retractor for a rear seat belt in which a retractor for winding a rear seat belt is fixed to a vehicle body via a bracket.

一般に、シートベルトを巻取るためのリトラクタは、リトラクタ取付け用のブラケットを介して車体に取付られ、車体パネルを構成するインナ部材とアウタ部材との間に埋設されるものが多い。このようなリトラクタ取付用ブラケットには、リトラクタの取付作業にかかるトルクや市場における実使用時のシートベルトからの入力負荷によってリトラクタが回転しないための廻り止め用やリトラクタの位置決め用として、リトラクタに対する爪状の係合部が設けられている。   In general, a retractor for winding a seat belt is attached to a vehicle body via a bracket for attaching the retractor, and is often embedded between an inner member and an outer member that constitute a vehicle body panel. Such a retractor mounting bracket has a pawl for the retractor to prevent the retractor from rotating due to the torque applied to the retractor and the input load from the seat belt in actual use in the market and for positioning the retractor. A shaped engaging portion is provided.

例えば、特許文献１には、リトラクタ取付用ブラケットにクランク形状の一対の爪状部を形成し、この一対の爪状部をリトラクタに形成した一対の長孔に係着して仮止めと共に位置決めした後、ブラケットに溶接されたナットを利用してリトラクタをブラケットにボルト締めする技術が開示されている。
特開平１０−１７５５０８号公報 For example, in Patent Literature 1, a pair of crank-shaped claws are formed on the retractor mounting bracket, and the pair of claws are engaged with a pair of long holes formed in the retractor and positioned together with temporary fixing. Subsequently, a technique for bolting the retractor to the bracket using a nut welded to the bracket is disclosed.
JP-A-10-175508

ところで、リヤシートベルト用のリトラクタをリヤクォータに取付ける場合、造形上、リヤクォータを構成するインナパネルとアウタパネルとの間隔が小さい軽自動車等の小型車両では、取付け上の制約からリトラクタの取付面が車室内側にオフセットしてしまい、ブラケットとリトラクタとの間にスペーサを入れる等の対策が必要となる。   By the way, when mounting the retractor for the rear seat belt to the rear quarter, in the case of small vehicles such as light cars where the distance between the inner panel and the outer panel constituting the rear quarter is small, the mounting surface of the retractor is on the vehicle interior side due to mounting restrictions. Therefore, it is necessary to take measures such as inserting a spacer between the bracket and the retractor.

このようなリトラクタの取付面の車室内側へのオフセットに対して、スペーサを用いると、スペーサの分だけ重量増を招くばかりでなく、スペーサの分だけブラケットの爪状部も延ばさざるを得ないといった問題が生じる。このブラケットの爪状部を延ばすことは、取付作業時の締結トルクや実使用時のシートベルトからの入力負荷によって爪状部が変形してリトラクタのガタツキによるベルト巻取り性の悪化が懸念されるばかりでなく、シートベルトの乗員拘束機能に悪影響を与える虞がある。   When the spacer is used against the offset of the mounting surface of the retractor toward the vehicle interior side, not only the weight is increased by the amount of the spacer but also the claw-shaped portion of the bracket has to be extended by the amount of the spacer. Problems arise. Extending the claw-shaped portion of the bracket is a concern that the claw-shaped portion may be deformed by the fastening torque at the time of installation work or the input load from the seat belt during actual use, and the belt winding performance may be deteriorated due to the rattling of the retractor. In addition, there is a possibility of adversely affecting the occupant restraining function of the seat belt.

本発明は上記事情に鑑みてなされたもので、リトラクタを車室側にオフセットさせて取付ける際の締結トルクやシートベルトからの入力に対する強度を確保しつつ、軽量化を図ることのできるリヤシートベルト用リトラクタの取付構造を提供することを目的としている。   The present invention has been made in view of the above circumstances, and for a rear seat belt capable of reducing the weight while securing the fastening torque when the retractor is mounted to the vehicle compartment side and the strength against the input from the seat belt. An object of the present invention is to provide a retractor mounting structure.

上記目的を達成するため、本発明によるリヤシートベルト用リトラクタの取付構造は、リヤシートベルトを巻取るリトラクタをブラケットを介して車体に固定するリヤシートベルト用リトラクタの取付構造であって、上記ブラケットに、車体に取付け固定される車体取付部と、この車体取付部から車室側に上記リトラクタの背部が収容可能な程度にオフセットさせたリトラクタ取付面を有するリトラクタ取付部とを設け、上記リトラクタ取付部の周囲に、上記リトラクタの外壁に当接して上記リトラクタの回転を規制する回転規制部を形成したことを特徴とする。 In order to achieve the above object, a rear seat belt retractor mounting structure according to the present invention is a rear seat belt retractor mounting structure in which a retractor for winding a rear seat belt is fixed to a vehicle body via a bracket. And a retractor mounting portion having a retractor mounting surface that is offset from the vehicle body mounting portion to the compartment side so that the back portion of the retractor can be accommodated , and around the retractor mounting portion. Furthermore, a rotation restricting portion that restricts the rotation of the retractor is formed in contact with the outer wall of the retractor.

本発明のリヤシートベルト用リトラクタの取付構造は、車体取付部から車室側にリトラクタの背部が収容可能な程度にオフセットさせたリトラクタ取付面を有するリトラクタ取付部の周囲に、リトラクタの外壁に当接して回転を規制する回転規制部を形成することにより、リトラクタを車室側にオフセットさせて取付ける際の締結トルクやシートベルトからの入力に対する強度を確保しつつ、軽量化を図ることができる。
The rear seat belt retractor mounting structure of the present invention is in contact with the outer wall of the retractor around the retractor mounting portion having a retractor mounting surface that is offset from the vehicle body mounting portion to the compartment side so that the back of the retractor can be accommodated. By forming the rotation restricting portion that restricts the rotation, it is possible to reduce the weight while securing the fastening torque when the retractor is attached to the vehicle cabin side and the strength against the input from the seat belt.

以下、図面を参照して本発明の実施の形態を説明する。図１〜図４は本発明の実施の一形態に係わり、図１は車体の後部側面を示す概略図、図２はリトラクタ用ブラケットの平面図、図３は図２のＡ−Ａ線断面図、図４はブラケットにリトラクタを取付けた状態を示す説明図である。   Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 relate to an embodiment of the present invention, FIG. 1 is a schematic view showing a rear side surface of a vehicle body, FIG. 2 is a plan view of a retractor bracket, and FIG. FIG. 4 is an explanatory view showing a state in which the retractor is attached to the bracket.

図１は、自動車等の車両の車体後部側面の擬略を示し、図においては、右側（運転席側）を車室内から見た側面を示す。同図に示す車体側面構造において、ルーフ１側からサイドシル２側に延びるセンターピラー３と、ルーフ１側からリヤアーチ４側へと延びるリヤクォータ５とにより、リヤドア開口部６が形成されている。   FIG. 1 shows a pseudo-abbreviation of a rear side surface of a vehicle such as an automobile. In the side structure of the vehicle body shown in the figure, a rear door opening 6 is formed by a center pillar 3 extending from the roof 1 side to the side sill 2 side and a rear quarter 5 extending from the roof 1 side to the rear arch 4 side.

また、リヤクォータ５には、リヤシート用のベルト７の基端側を巻取り収納する周知の構造のリトラクタ８が配設されている。本形態においては、リヤクォータ５を形成するアウタパネルとインナパネルとの間の間隔が小さく、リトラクタ８全体をリヤクォータ５内に埋設することが困難であることから、リトラクタ８の取付面を車室側に若干オフセットさせ、図２に示すように、インナパネルやリンフォース等に固設されるブラケット１０を介してリトラクタ８が取付けられている。   The rear quarter 5 is provided with a retractor 8 having a known structure that winds and houses the base end side of the belt 7 for the rear seat. In this embodiment, since the distance between the outer panel and the inner panel forming the rear quarter 5 is small and it is difficult to embed the entire retractor 8 in the rear quarter 5, the mounting surface of the retractor 8 is placed on the vehicle compartment side. As shown in FIG. 2, the retractor 8 is attached via a bracket 10 fixed to an inner panel, a reinforcement or the like.

ブラケット１０は、図２，図３に示すように、細長の板状の部材の両側を階段状に屈曲させて形成され、インナパネルやリンフォース等に当接して固設される車体取付部１１（但し、図２においては、車体取付部１１の裏面側がインナパネルやリンフォースへの当接面となる）を両側に備えると共に、両側の車体取付部１１の間で隆起されて車室側にオフセットされたリトラクタ取付面を有するリトラクタ取付部１２を備えている。リトラクタ取付部１２には、リトラクタ８を図示しないボルトを介して締結・固定するためのナット１３が裏面側に溶接されて固着されている。   As shown in FIGS. 2 and 3, the bracket 10 is formed by bending both sides of an elongated plate-like member in a staircase shape, and is fixed to a vehicle body mounting portion 11 in contact with an inner panel, reinforcement, or the like. (However, in FIG. 2, the rear surface side of the vehicle body mounting portion 11 is a contact surface to the inner panel or the reinforcement) on both sides, and is raised between the vehicle body mounting portions 11 on both sides to the vehicle compartment side. A retractor mounting portion 12 having an offset retractor mounting surface is provided. A nut 13 for fastening and fixing the retractor 8 via a bolt (not shown) is welded and fixed to the retractor mounting portion 12 on the back side.

また、リトラクタ取付部１２の両側には、リトラクタ取付部１２にボルトで締結されたリトラクタ８に対し、リトラクタ８の外壁に当接してリトラクタ８の回転を規制する回転規制部１４，１５が設けられている。回転規制部１４，１５は、リトラクタ取付部１２のナット１３を中心とする円弧状の部位の両側の長辺の縁部によって形成され、この縁が所定の幅で下方（ナット１３側）に折曲げられてフランジ状に形成されている。   Further, on both sides of the retractor mounting portion 12, rotation restricting portions 14, 15 are provided for restricting the rotation of the retractor 8 by contacting the outer wall of the retractor 8 with respect to the retractor 8 fastened to the retractor mounting portion 12 with bolts. ing. The rotation restricting portions 14 and 15 are formed by long side edges on both sides of an arc-shaped portion centering on the nut 13 of the retractor mounting portion 12, and the edges are folded downward (to the nut 13 side) with a predetermined width. It is bent and formed into a flange shape.

以上のブラケット１０にリトラクタ８を取付けるには、予めブラケット１０をリヤクォータ５の内面を構成するインナパネルに開口されたリトラクタ収納部９に対応する位置に配置し、ブラケット１０の両端の車体取付部１１をインナパネルやリンフォース等に当接してスポット溶接等により固定しておく。   In order to attach the retractor 8 to the bracket 10 described above, the bracket 10 is disposed in advance at a position corresponding to the retractor storage portion 9 opened in the inner panel constituting the inner surface of the rear quarter 5, and the vehicle body mounting portions 11 at both ends of the bracket 10 are arranged. Is in contact with the inner panel, reinforcement or the like and fixed by spot welding or the like.

次に、図４に示すように、ブラケット１０のリトラクタ取付部１２のナット１３の位置に、リトラクタ８のボビンを収納する本体部先端に設けられた取付孔８ａの位置を合わせると共に、取付孔８ａの両側の段部８ｂ，８ｃをブラケット１０の回転規制部１４，１５に当接させて位置を合わせ、図示しないボルトをリトラクタ８の取付孔８ａに挿通し、ナット１３に締結してリトラクタ８をブラケット１０に固定する。これにより、リトラクタ８はインナパネル基準面よりも若干車室側にオフセットしてセットされ、背部がインナパネルのリトラクタ収納部９に収納される。尚、リトラクタ８の車室側部分は、インナパネルに取付けられるトリムによって覆われる。   Next, as shown in FIG. 4, the position of the mounting hole 8a provided at the front end of the body portion for housing the bobbin of the retractor 8 is aligned with the position of the nut 13 of the retractor mounting portion 12 of the bracket 10, and the mounting hole 8a. The step portions 8b and 8c on both sides of the bracket are brought into contact with the rotation restricting portions 14 and 15 of the bracket 10 to adjust the position, and a bolt (not shown) is inserted into the mounting hole 8a of the retractor 8 and fastened to the nut 13 to attach the retractor 8. Fix to the bracket 10. As a result, the retractor 8 is set slightly offset from the inner panel reference surface toward the passenger compartment, and the back portion is accommodated in the retractor accommodating portion 9 of the inner panel. Note that the passenger compartment side portion of the retractor 8 is covered with a trim attached to the inner panel.

この場合、リトラクタ８の取付孔８ａの径及び取付孔８ａと段部８ｂ，８ｃとの間の距離やブラケット１０のナット１３中心位置と回転規制部１４，１５との間の距離等のリトラクタ８とブラケット１０との取付位置関係の各寸法は、適正に公差管理されており、組付作業時の締結トルクによってリトラクタ８からブラケット１０に加わる回転トルクが回転規制部１４，１５を介してブラケット１０全体に分散される。   In this case, the diameter of the mounting hole 8a of the retractor 8, the distance between the mounting hole 8a and the stepped portions 8b and 8c, the distance between the center position of the nut 13 of the bracket 10 and the rotation restricting portions 14 and 15, etc. The dimensions of the mounting position relationship between the bracket 10 and the bracket 10 are appropriately managed with tolerances, and the rotational torque applied from the retractor 8 to the bracket 10 by the fastening torque at the time of the assembling work is supplied to the bracket 10 via the rotation restricting portions 14 and 15. Distributed throughout.

従って、従来のブラケットのようにオフセットに対応して延長した廻り止め用の爪状部が取付作業時の締結トルクによって変形してしまうといったことがなく、市場における実使用時のベルト入力に対しても強度を確保することができる。しかも、リトラクタの車室内へのオフセット取付けのために、ブラケットにスペーサ等の部品を追加する必要がないことから、重量増を招くこともない。このように、リトラクタのオフセット取付けという造形状の制約に対応しつつ、必要な強度を確保して、リトラクタのベルト巻取り性能やシートベルトの乗員拘束機能を保障し、性能及び軽量化の要求を満足することができる。   Therefore, the claw-like portion for locking that has been extended corresponding to the offset as in the case of the conventional bracket is not deformed by the fastening torque at the time of mounting work, and the belt input at the time of actual use in the market. Can also ensure strength. In addition, since it is not necessary to add a part such as a spacer to the bracket for offset mounting of the retractor in the vehicle interior, there is no increase in weight. In this way, while responding to the restrictions on the shape of the offset installation of the retractor, the necessary strength is secured, the retractor belt winding performance and the seat belt occupant restraint function are ensured, and the demands for performance and weight reduction are met. Can be satisfied.

車体の後部側面を示す概略図Schematic showing the rear side of the car body リトラクタ用ブラケットの平面図Top view of retractor bracket 図２のＡ−Ａ線断面図AA line sectional view of FIG. ブラケットにリトラクタを取付けた状態を示す説明図Explanatory drawing which shows the state which attached the retractor to the bracket

符号の説明Explanation of symbols

７ ベルト
８ リトラクタ
８ａ 取付孔
８ｂ，８ｃ 段部
１０ ブラケット
１１ 車体取付部
１２ リトラクタ取付部
１３ ナット
１４，１５ 回転規制部
代理人 弁理士 伊 藤 進 7 Belt 8 Retractor 8a Mounting hole 8b, 8c Step 10 Bracket 11 Car body mounting 12 Retractor mounting 13 Nut 14, 15 Rotation restricting
Agent Patent Attorney Susumu Ito

Claims (2)

リヤシートベルトを巻取るリトラクタをブラケットを介して車体に固定するリヤシートベルト用リトラクタの取付構造であって、
上記ブラケットに、車体に取付け固定される車体取付部と、この車体取付部から車室側に上記リトラクタの背部が収容可能な程度にオフセットさせたリトラクタ取付面を有するリトラクタ取付部とを設け、
上記リトラクタ取付部の周囲に、上記リトラクタの外壁に当接して上記リトラクタの回転を規制する回転規制部を形成したことを特徴とするリヤシートベルト用リトラクタの取付構造。 A retractor mounting structure for a rear seat belt for fixing a retractor for winding a rear seat belt to a vehicle body via a bracket,
The bracket is provided with a vehicle body attachment portion that is attached and fixed to the vehicle body, and a retractor attachment portion that has a retractor attachment surface that is offset from the vehicle body attachment portion to the compartment side so that the back portion of the retractor can be accommodated .
A structure for mounting a retractor for a rear seat belt, wherein a rotation restricting portion for restricting the rotation of the retractor is formed around the retractor attaching portion so as to abut against the outer wall of the retractor. 上記リトラクタ取付部に、上記リトラクタをボルトを介して締結するためのナットを固設し、
上記回転規制部を、上記ナット側方のフランジ状の縁部によって形成したことを特徴とする請求項１記載のリヤシートベルト用リトラクタの取付構造。 A nut for fastening the retractor via a bolt is fixed to the retractor mounting portion,
2. The structure for mounting a retractor for a rear seat belt according to claim 1, wherein the rotation restricting portion is formed by a flange-like edge portion on the side of the nut.
JP2003400006A 2003-11-28 2003-11-28 Retractor mounting structure for rear seat belt Expired - Fee Related JP4409265B2 (en)

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JP2003400006A JP4409265B2 (en) 2003-11-28 2003-11-28 Retractor mounting structure for rear seat belt

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JP2005161887A JP2005161887A (en) 2005-06-23
JP4409265B2 true JP4409265B2 (en) 2010-02-03

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KR100736790B1 (en) * 2006-06-20 2007-07-09 기아자동차주식회사 Retractor for saft belt abrasion
JP5880352B2 (en) * 2012-08-27 2016-03-09 マツダ株式会社 Rear sound insulation structure of automobile

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